I'm gonna assume you mostly just wanted the lips or eyebrows? Anyway, your best bet is to get a resource that has just those (and painted eyebrows). Then you can place them where you want :o). I have a couple resource packs like that. They'll work on nearly any texture too.

Another option is to get yourself some photo references (I use those also). Whip out the pen tool and silo (silhouette) the lips right at the edge of the colored part. I love doing silo's...LOL.

Laurie